I found this age soooo hard for naps. There is lots of developmental stuff going on so many lo's do short naps even with the right A times.
Do you have a dark room? Consistent wind down?
I would never have had any luck transferring mine to the cot from the car seat, they always woke up so tbh I would try to make sure you are in for a good 15 mins before the nap so you can do wind down. If you are out and about then maybe just leave her to nap in the car if it is necessary for you to be out (with you there of course)
If she sleeps 5-10 mins she needs a much shorter A time. As a general rule for a short nap you take off 30 mins of A time but tbh a 5-10 min nap is nothing so I would try again after about 30 mins or sooner if she seems fussy. At this age it can feel like you are tied to the house but it does get better!
We are always home by 1 hr 45 but she falls asleep round 1 hr 30.
See i would just come home earlier if you want to get a good nap or if not then accept that the nap is going to be a bust...like I said it does get easier.
Feel free to post your last 2 days routine and we can take a look.