Can credit-card statements be used as parking meter receipts for client visits?

[kirkbloomquist]

I'm a small business owner (LLC), with a home office.  One of my long-term clients requires me to be onsite at least a few days out of the week and does not reimburse mileage and parking. I have a letter from the client stating the former but the only parking option are meters.  At first didn't think I could deduct the parking because the meters don't provide receipts, but I thought I'd get some advice.  

Can my credit card statements showing the charges be used as a receipt?  The meter charge dates will line up with my mileage log one-to-one.

[ScruffyCurmudgeon]

As long as you keep a "contemporaneous record" - best in the form of a journal showing the days you are on site at the client, then the credit card charges will provide substantiation for not only parking transportation expenses but also any mileage that may be deductible - depending on how you deal with vehicle expenses and assuming that this one client is not your only one business location stop in a day.