The weights would have been good, but I would suggest you do the Cardio as per usual. The 3.5 miles 3x a week, then the other days take about 200-300 calories out of the diet, to account for calories you won't be burning.
That might be a simple way forward.
When you are able to fund the use of a Gym again, put the calories back in, so you're not trying to workout with weights and eat a little below a decent requirement, because adding the 200-300 calories back in would make sens then, when you had more days of increased caloric burning.
Alternatively keep eating the calories and do bodyweighted stuff at home. This routine should be sufficient for you I feel, of you cose to do that.
Do all exercises bar Abs, with a 60 second break between sets.Squats
Stand Straight fingers on temples.
Pretend you're sitting down and whne you reahc 90 degrees, pretend you're getting up and straighten the body again. That's a rep. 10 reps 2 setsHamstring Curls
On the forearms and knees. Lifting one leg up until it's straight and parallell with your back, then bend the knee to 90 degrees and back down again to parallell for 10 reps, using the forearms and the other knee to support you.
Switch Legs and repeat for 10 reps. This is one set. Then do another set.Good Mornings
Legs straight, back straight, tips of the fingers touching the temples. Bend from the waist to 90 degrees. Come back up to vertical again. Again 10 reps of this for 2 sets.Press-ups
On the Hands and knees, back straight, 10 reps 2 sets.Bent Over rows
Knees at 45 degrees, Back straight. Pull the Arms back, then forwards again. That's a rep. 2 sets 10 reps.Shoulder Press
2 sets of 10 reps.Planks
on the Forearms and Toes. 30 seconds.
If you average about 3 seconds a rep, you'll take 17 minutes 30 seconds, approximately. For 4 second reps, that's around 19 minutes 30 seconds approximately, so it's not that long.
Do that 3x a week on days you don't run.
So you've got two ways to approach your situation. Hopefully that helps.