I'd cover to at least the tops of the emerging stems...but otherwise yes. You've done your best...though, it may not be very satisfactory.

Here are comments on a similar question about jonquils I asked a few weeks ago: What should I expect if I plant jonquil bulbs in a pot outside now? - Do jonquils and tulips behave similarly when planted this late?

Thanks. Dbaron: Will cover with more soil and hope for the best.

Albert. I read your post and hopefully they will bloom for me next spring.

Well, they are growing and have roots. Don't know what to expect next. Cross your fingers.