I haven't seen anything in Cairo and I was out this morning driving down to the Khan el Khalili. If anything, the traffic is heavier.
Must say though, one of the vendors tried to sell me two vanilla pods for 100 EGP so obviously the price increases are taking effect, but I think I will put it down to the famous Egyptian sense of humour. I got them for 35 EGP eventually which is still too expensive but I didn't have time to haggle any longer.
On a serious note though, I have noticed big increases in prices in the shops. I would expect another round of price increases as we speak because of the cost of petrol.
Margaret